What is a key sign that prompts immediate action for a nurse caring for a client with cystic fibrosis?

In the context of cystic fibrosis, increased respiratory effort is a key sign that prompts immediate action. This condition is characterized by thick, sticky mucus that can obstruct the airways and lead to respiratory complications. When a client exhibits increased respiratory effort, it indicates that their lungs are struggling to deliver adequate oxygen or are experiencing an exacerbation of their condition, which could lead to respiratory failure if not addressed promptly.

Frequent coughing, while common in cystic fibrosis, is often a way for the patient to clear mucus from their airways. Loss of appetite may also occur due to various factors such as digestive issues or the energy expended during breathing, but it does not necessitate immediate intervention in the same way that respiratory distress does. Weight loss is another potentially concerning sign that could indicate worsening of the disease, but it is a longer-term consequence rather than an acute issue requiring immediate action. Therefore, the focus should be on recognizing signs of respiratory distress, as they are critical in managing the well-being of a client with cystic fibrosis.